out of copyright (called public domain in the USA), hence royalty-free stock image for all purposes usage credit requestedPlease do not redistribute without permission, since running this site is expensive.

The Brothers Dalziel

A Record of fifty years’ work in conjunction with many of the most distinguished artists of the period 1840—1890

You can get a version of this image without the watermark at the lower right corner by requesting it here; The images are watermarked to help people find where they came from if they get reposted to blogs or other sites. Images under 1200 pixels on a side
are still free, although I will ask for a donation :-)